silversmith unknown

I HAVE A SMALL SILVER KNIFE AND FORK WITH MOTHER OF PEARL HANDLES. EACH 31/4 INCHES LONG. THE BLADES ARE STAMPED WITH A LION AND A HEAD FACING RIGHT WITH THE WORD T GRAY.
I CANNOT IDENTIFY THIS MAKER. THE SET WAS SOLD IN 1858 BY LAMBERT AND RAWLINGS 0F 11 AND 12C COVENTRY STREET LONDON. GOLDSMITHS AND JEWELLERS TO THEIR MAJESTIES. :question:

Some things in your description do not add up. Assuming a date of 1858 a Victorian duty mark has the head facing left. In addition you have not mentioned a town mark nor a date letter. I really think that a picture is essential for us to make any progress.